JPS595191Y2 - Pump automatic operation water supply device - Google Patents

Description

[Detailed Description of the Invention] The object of the present invention is to provide an improved pump automatic operation water supply device.

Conventionally, when a pressure tank is installed to supply water directly, if there is a power outage or the like, the pump becomes inoperable and water cannot be supplied.

On the other hand, if an elevated water tank is installed and the water is directly pumped up and water is supplied through the elevated tank, the pressure tends to drop on the top floor, so in this case the elevated tank needs to be installed at a higher location. In addition, elevated tanks have problems such as the need to increase the volume of the water tank in consideration of peak times when water is frequently used, resulting in problems such as high costs and a large installation area.

The present invention aims to eliminate the above-mentioned problems,
According to the device of the present invention, when pumping is not possible due to water outage, power outage, etc., the water stored in the elevated tank is supplied with water, and since the water stored in the elevated tank is used periodically, it does not spoil and remains clean at all times. In addition to being able to do this, the elevated tank also has a small volume and requires less installation space. In an automatic pump operation system in which a pressure water tank, a pressure switch, an elevated water tank, etc. are installed in the next lift pipe to convey water, the elevated tank is formed with a relatively small volume and a normally closed automatic pump is installed at the tip of the lift pipe. At the same time, a stop electrode and a start electrode for detecting the upper and lower limit water levels are installed in the tank, and the above-mentioned normally closed automatic valve and the below-mentioned first auxiliary relay are installed on the tank by detecting these two electrodes. In addition to installing a water level controller to operate the tank, a discharge pipe was installed at the bottom of the elevated tank via a check valve to prevent water from flowing back into the tank, and a water supply pipe was inserted in the middle of the pump pipe. By connecting the tip of the discharge pipe with a check valve, water on the discharge pipe side is prevented from flowing toward the pumping pipe side, and a water supply tap is provided at the tip of the pipe, and the other end is connected to the top of the pipe once. Alternatively, the pump driving electric motor is turned on and off by the on/off operation of a time relay that operates for a specific fixed period of time, such as twice, a normally closed first auxiliary relay that is turned on and off by the water level controller, and a pressure switch. A normally closed second auxiliary relay for operating the main electromagnetic switch is installed, and the normally closed first relay is energized while the time relay is operating.
The normally closed second auxiliary relay is opened via the auxiliary relay, but when the time relay is stopped, the time relay does not energize, so the normally closed second auxiliary relay is closed, and when the water level controller is activated, the time limit is closed. Even if the relay is under control, the normally closed first auxiliary relay is opened and the normally closed second auxiliary relay is de-energized, and a circuit between the pressure switch and the main electromagnetic switch is formed via the normally closed second auxiliary relay. It is in being done as it is done.

An example of implementing the present invention will be described below based on screen shots.

The drawing is a schematic diagram showing the configuration of the present invention, where 1 is a pump and 2 is a driving motor thereof.

3 is a foot valve, 4 is a suction pipe, 5 is a check valve provided on the pump discharge side, and 6 is a water supply pipe, which is a wiring for supplying water to the water supply pipe 6a and the water tap for the elevated tank. It consists of a water pipe 6b.

Branch pipes 7 and 8 are branched off from the lift pipe 6a, and the former is provided with a pressure tank, and the latter is provided with a pressure switch 10 that is activated by pressure fluctuations.

Reference numeral 11 denotes an elevated tank installed at the same height, into which water from the pumping pipe 6a flows through a normally closed automatic valve 15 provided outside the tank.

16 is its inlet. The elevated tank 11 is provided with a stop electrode 13a and a start electrode 13b for detecting an upper limit water level A and a lower limit water position in the tank, and the above-mentioned normally closed automatic valve 15 and the above-described below-described A water level controller 14 is provided for activating a first auxiliary relay.

Reference numeral 17 indicates a discharge port drilled in the bottom of the elevated tank 11, and 18 indicates a check valve provided below the discharge port, and the side of the valve opposite to the discharge port 17 is connected to a water distribution pipe 6b branched in the middle of the water pump 6a. through one check valve 19, and the check valve 19
A large number of water taps 12 are installed at the tip of the opposite side from the water pump 6a.
a, 12b, 12C... are provided.

The check valve 18 is configured to allow water in the elevated tank 11 to pass through, but prohibits water from passing through, and the check valve 19 is configured to allow the water in the elevated tank 11 to pass through, while the check valve 19 is configured to allow the water in the elevated tank 11 to pass through.
Water from A is allowed to pass through, but other water is prohibited.

Reference numeral 20 denotes a time-limited relay, which operates for a specific fixed period of time, such as once or twice a day, to energize the circuit.

21 is a normally closed first auxiliary relay, 22 is a normally closed second auxiliary relay, and 23 is a main electromagnetic switch, which are connected to the pressure switch 10, water level controller 14, electric motor 2, etc. by electric wires. .

Next, the effect will be explained.

In the device of the present invention, the time relay 20 is operated once or twice a day.
When the time-limited relay 20 is in operation, it is energized and the normally-closed second auxiliary relay 22 is opened via the normally-closed first auxiliary relay 21.
0 is stopped, the normally closed second auxiliary relay is closed because the time relay 20 is not energized, and the water taps 12a, 12b, 12C, etc. are closed to use water.
Even if the motor 2 is opened, the motor 2 is not driven, so the pump 1
Water is not conveyed by the rotation of the tank, and the water stored in the elevated tank 11 and the water in the pressure tank are transferred from the discharge port 17 to the check valve 1.
8, the latter flows out via check valve 19 and is used.

When the water stored in the tank 11 decreases and reaches the lower limit water position, the starting electrode 13b detects this and the water level controller 14
At the same time as opening the normally closed automatic valve 15 through the The electromagnetic switch 23 is closed, and water supply by the rotation of the pump 1 continues.

At this time, water is supplied from the water tap 12a. 12b, 12c
. . . In addition to the use by opening, this is also done for the elevated tank 11, and when the water in the elevated tank 11 reaches the upper limit water level A, the stop electrode 13a detects this and the water level controller 14 The normally closed automatic valve 15 is closed, and at the same time the pressure inside the water pump 6 increases, the pressure switch 10 is turned off, the main electromagnetic switch 23 is opened, and the pump 1 is stopped.

In the present invention, when water is used when the time relay 20 is not in use, the water taps 12a and 12b are used.

12 When C.... is opened, when the water supply in the water supply pipe drops below a certain pressure, the pressure switch is activated immediately to drive the electric motor 2, and the water supplied by the rotation of the pump 1 is transmitted through the water distribution pipe 6b. Also, the elevated tank 11
This makes it possible to use water with sufficient water pressure even on the top floor of a building where sufficient water pressure cannot be obtained due to the head difference between the two.

When the water in the elevated tank 11 is used at the same time and the water level decreases, the starting electrode 13b detects this and automatically opens the normally closed automatic valve 15 via the water level controller 14 to remove the water being supplied. When the upper limit water level A is reached, the stop electrode 13a detects this, and the water level controller 14
The normally closed automatic valve 15 is closed via the .

The device of the present invention is constructed as described above, and its effects are as follows.

The elevated tank 11 in the present invention is only used to temporarily avoid problems when water is needed during a water outage or power outage, so there is no need to install one with a large capacity. .

In addition, water supply in equipment using conventional elevated tanks has the problem of rotting the stored water, but as in this invention, a timed relay is periodically activated, and while the timed relay is in operation, priority is given to water stored in the elevated tank. In other words, it is necessary to use it freshly once or twice a day, making it extremely hygienic.

It is preferable that the time relay is set to operate at times during the day when the amount of water used is the highest, such as from 8:00 am to 10:00 am and from 4:00 pm to 6:00 pm.

In addition, the fact that the elevated tank can be made relatively small in this invention not only reduces the installation area and contributes to reducing overall equipment costs, but also has excellent features such as ease of construction. .

[Brief explanation of drawings]

The drawing is a schematic diagram of the device according to the invention. 1... Pump, 2... Electric motor, 3...
...Foot valve, 5...Check valve, 6a...
... Lifting pipe, 6b... Water pipe, 9...
・Pressure water tank, 10...Pressure switch, 12a,
12b. 12 C... Water faucet, 13 a... Stop electrode, 13b... Start electrode, 14...
・Water level controller, 15... Normally closed automatic valve, 18゜1
9...Check valve, 20...Timed relay,
23... Main electromagnetic switch.

Claims (1)

[Scope of utility model registration request] In an automatic pump operation system, a check valve 5 is provided at the pump discharge port, and a pressure water tank 9, a pressure switch 10, an elevated water tank 11, etc. are provided in the secondary pumping pipe 6a of the check valve 5, and water is supplied. The elevated tank 11 is formed to have a relatively small volume and is disposed at the tip of the water pump 6a via a normally closed automatic valve 15, and there are stop electrodes 1 in the tank to detect the upper and lower limit water levels.
3a and a starting electrode 13b are installed on the tank, and the above-mentioned normally closed automatic valve 15 and the first
In addition to providing a water level controller 14 that operates an auxiliary relay, a discharge pipe 17 is installed at the bottom of the elevated tank 11 via a check valve 18 to prevent the water in the tank from flowing back.
A water supply pipe 6b is separately installed in the middle of a, and is connected to the distal end of the discharge pipe 17 via a check valve 19 to prevent the water on the discharge pipe side from flowing toward the pumping pipe 6a side, and to At the tip are water taps 12a, 12b, 12C...
and a normally closed first auxiliary relay 2 which is turned on and off by the water level controller 14, and a time relay 20 that operates for a specific fixed time such as once or twice.
1 and a main electromagnetic switch 23 that turns on and off the pump drive motor 2 by turning on and off the pressure switch 10.
A normally closed second auxiliary relay 22 etc. for operation is provided, and when the time relay 20 is in operation, it is energized and the normally closed second auxiliary relay 22 is opened via the normally closed first auxiliary relay 21, but when the time relay 20 is stopped Since the time relay 20 is not energized, the normally closed second auxiliary relay 22 is closed, and the water level controller 14 is closed.
When activated, even if the time relay 20 is in operation, the normally closed first auxiliary relay 21 is opened and the normally closed second auxiliary relay 22 is deenergized, and the circuit between the pressure switch 10 and the main electromagnetic switch 23 is normally closed. A pump automatic operation water supply device characterized in that it is formed via a second auxiliary relay 22.